40120123524 has 48 divisors (see below), whose sum is σ = 100841435520. Its totient is φ = 12341376000.

The previous prime is 40120123513. The next prime is 40120123541. The reversal of 40120123524 is 42532102104.

It is a junction number, because it is equal to n+sod(n) for n = 40120123494 and 40120123503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592017 + ... + 656295.

It is an arithmetic number, because the mean of its divisors is an integer number (2100863240).

Almost surely, 2^40120123524 is an apocalyptic number.

It is an amenable number.

40120123524 is an abundant number, since it is smaller than the sum of its proper divisors (60721311996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40120123524 is a wasteful number, since it uses less digits than its factorization.

40120123524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68300 (or 68298 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 40120123524 its reverse (42532102104), we get a palindrome (82652225628).

The spelling of 40120123524 in words is "forty billion, one hundred twenty million, one hundred twenty-three thousand, five hundred twenty-four".